Optimal frame memory and data transfer scheme for MPEG-4 shape coding

Author

Lee, Kun-Bin ; Chang, Nelson Yen-Chung ; Chin, Hao-Yuan ; Hsu, Hui-Jane ; Jen, Chein-Wei

Author_Institution

Dept. of Electron. Eng., Nat. Chiao Tung Univ., Hsinchu, Taiwan

fYear

2003

fDate

17-19 June 2003

Firstpage

164

Lastpage

165

Abstract

An optimal frame memory and data transfer scheme is proposed for MPEG-4 shape coding in embedded systems. Based on the inherent property of shape information, the binary alpha blocks are losslessly compressed with a fixed 50% compression ratio and can be randomly accessed. Therefore the size of frame memory can be reduced to 50% with a small index table (2.73% to 5.08% of the original frame memory size), and the number of memory references can be reduced to 56.25%. The data transfer scheme combines the run length coding and addressing mode to reduce data transfer time to 9.39%.

Keywords

VLSI; consumer electronics; data compression; electronic data interchange; embedded systems; optimisation; storage management; video coding; MPEG-4 shape coding; binary alpha blocks; compression ratio; consumer electronics devices; data transfer; embedded systems; frame memory; optimized VLSI architecture; Consumer electronics; Cost function; Embedded system; Layout; MPEG 4 Standard; Multimedia databases; Shape; Telephony; Testing; Video surveillance;

fLanguage

English

Publisher

ieee

Conference_Titel

Consumer Electronics, 2003. ICCE. 2003 IEEE International Conference on

Print_ISBN

0-7803-7721-4

Type

conf

DOI

10.1109/ICCE.2003.1218862

Filename

1218862